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libpq: Remove deprecated connection parameters authtype and tty

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The authtype parameter was deprecated and made inactive in commit
d5bbe2aca5, but the environment variable was left defined and thus
tested with a getenv call even though the value is of no use.  Also,
if it would exist it would be copied but never freed as the cleanup
code had been removed.

tty was deprecated in commit cb7fb3ca95 but most of the
infrastructure around it remained in place.

Author: Daniel Gustafsson <daniel@yesql.se>
Discussion: https://postgr.es/m/DDDF36F3-582A-4C02-8598-9B464CC42B34@yesql.se
This commit is contained in:
Peter Eisentraut
2021-03-09 15:01:22 +01:00
parent 096bbf7c93
commit 14d9b37607
4 changed files with 17 additions and 41 deletions
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13
doc/src/sgml/libpq.sgml
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@ -232,6 +232,11 @@ PGconn *PQsetdbLogin(const char *pghost,
if it had been passed to <xref linkend="libpq-PQconnectdb"/>, and the remaining
parameters are then applied as specified for <xref linkend="libpq-PQconnectdbParams"/>.
</para>
<para>
<literal>pgtty</literal> is no longer used and any value passed will
be ignored.
</para>
</listitem>
</varlistentry>
@ -2119,10 +2124,10 @@ char *PQport(const PGconn *conn);
<listitem>
<para>
Returns the debug <acronym>TTY</acronym> of the connection.
(This is obsolete, since the server no longer pays attention
to the <acronym>TTY</acronym> setting, but the function remains
for backward compatibility.)
This function no longer does anything, but it remains for backwards
compatibility. The function always return an empty string, or
<symbol>NULL</symbol> if the <parameter>conn</parameter> argument is
<symbol>NULL</symbol>.
<synopsis>
char *PQtty(const PGconn *conn);